Mac OS:泄漏消毒剂 [英] Mac OS: Leaks Sanitizer

问题描述

Mac OS X Sierra 10.13

Mac OS X Sierra 10.13

我照这里写的去做 https://clang.llvm.org/docs/LeakSanitizer.html

即创建了带有内存泄漏的小型应用程序

I.e. created the small application with memory leak

#include <stdlib.h>
void *p;
int main() {
  p = malloc(7);
  p = 0; // The memory is leaked here.
  return 0;
}

然后构建它并运行以测试如何检测到内存泄漏:

Then build it and run to test how the memory leak is detected:

admins-Mac:test2 admin$ clang -fsanitize=address -g mleak.c ; ASAN_OPTIONS=detect_leaks=1 ./a.out
==556==AddressSanitizer: detect_leaks is not supported on this platform.
Abort trap: 6
admins-Mac:test2 admin$ 

如何检测泄漏? 我需要在大型应用程序中使用它.

How I can detect the leak? I need to use it for my large application.

推荐答案

Apple提供的Clang/LLVM似乎没有-fsanitize=leak支持.我通过在Homebrew上安装LLVM来修复它.关于要点

It seems that the Clang/LLVM shipped by Apple does not have -fsanitize=leak support. I fixed it by installing LLVM on Homebrew. A more detailed fix is on gist

$ brew install llvm@8

# Overwritten default Clang
$ echo 'export PATH="/usr/local/opt/llvm/bin:$PATH"' >> .zshrc

$ source ~/.zshrc
$ which clang
/usr/local/opt/llvm/bin/clang

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